14 06, 2017

Static and dynamic network visualization with R

2018-07-11T14:46:37+00:00June 14th, 2017|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , |

This is a comprehensive tutorial on network visualization with R. It covers data input and formats, visualization basics, parameters and layouts for one-mode and bipartite graphs; dealing with multiplex links, interactive and animated visualization for longitudinal networks; and visualizing networks on geographic maps. To follow the tutorial, download the code and [...]

6 04, 2016

Sunbelt network visualization: R and Gephi tutorials

2018-06-15T07:13:23+00:00April 6th, 2016|Tags: , , , , , , , , , , |

More details to follow, but for now: workshop materials from Sunbelt 2016.   Basic and Advanced Network Visualization with Gephi Sunbelt 2016 workshop materials Network visualization with Gephi: workshop handout (PDF) Network visualization with Gephi: example data files (ZIP)   Basic and Advanced Network Visualization with R Sunbelt 2016 workshop materials [...]

10 01, 2016

Network analysis with R and igraph: NetSci X Tutorial

2018-07-11T14:53:08+00:00January 10th, 2016|Tags: , , , , , , , , , , , , , , , , |

Get the tutorial PDF and code, or download on GithHub. A more recent tutorial covering network basics with R and igraph is available here. If you find the materials useful, please cite them in your work – this helps me make the case that open publishing of digital materials like this [...]

8 06, 2015

The world as seen in political statements

2018-06-15T17:49:13+00:00June 8th, 2015|Tags: , , , , , |

A new Politico post produced by our lab examines the mentions of countries around the globe in congressional documents. We look at the frequency of country mentions and co-occurrence. These numbers were extracted from political statements provided by VoteSmart. Here we post the data we used for those visualizations. The files [...]

20 05, 2015

Term co-occurrence in party documents: Network data from our Politico post

2018-06-15T15:42:17+00:00May 20th, 2015|Tags: , , , , , |

David Lazer, Oren Tsur, and I recently took a look at the use of the term "coal" in documents produced by members of the US Congress. Some numbers and visualizations based on this were published by Politico. Here, we post the data behind the network map of term co-occurrence in coal-related [...]

10 03, 2015

The Congress Tweets You Never Did See

2018-06-16T01:04:05+00:00March 10th, 2015|Tags: , , , , , , |

Politicians Descriptive Party States URLs Terms/Tags Sentiment Term net [UPDATE 15/03/30] Check out this follow-up post to get the R code used to extract and clean the Politwoops & Twitter data. A package that automates the data collection is now available on GitHub: PolitwoopsR. For some months now, I've been playing [...]

19 04, 2014

Facebook data collection and photo network visualization with Gephi and R

2018-06-15T17:48:13+00:00April 19th, 2014|Tags: , , , , , , , , , |

Facebook Network: Gephi Facebook Network: igraph Facebook Network: qgraph [Update April 26 2o14] Esteban Moro reminded me that there's no need to manually rescale igraph layouts now - one can use layout.norm() instead (script updated accordingly). Hugle [...]

28 06, 2012

Our FCC Briefing: Critical Information Needs of the American Public

2018-06-15T18:09:04+00:00June 28th, 2012|Tags: , , , , , , |

In the last few months, I've been working with a great team of scholars putting together a study commissioned by the FCC. The project provides a critical review of existing research on the information needs of communities in the US. Major points include defining individual and community critical needs, examining the [...]